diff options
| author | Chiara Meiohas <cmeiohas@nvidia.com> | 2024-09-09 20:30:24 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2024-09-13 08:29:14 +0300 |
| commit | 9cbed5aab5aeea420d0aa945733bf608449d44fb (patch) | |
| tree | 5eea7356d6d0d7a7faf044b00d47c5916259fe1b /include/rdma/rdma_netlink.h | |
| parent | 8d159eb2117b2e3697a31785662b653938f007cb (diff) | |
RDMA/nldev: Add support for RDMA monitoring
Introduce a new netlink command to allow rdma event monitoring.
The rdma events supported now are IB device
registration/unregistration and net device attachment/detachment.
Example output of rdma monitor and the commands which trigger
the events:
$ rdma monitor
$ rmmod mlx5_ib
[UNREGISTER] dev 1 rocep8s0f1
[UNREGISTER] dev 0 rocep8s0f0
$ modprobe mlx5_ib
[REGISTER] dev 2 mlx5_0
[NETDEV_ATTACH] dev 2 mlx5_0 port 1 netdev 4 eth2
[REGISTER] dev 3 mlx5_1
[NETDEV_ATTACH] dev 3 mlx5_1 port 1 netdev 5 eth3
$ devlink dev eswitch set pci/0000:08:00.0 mode switchdev
[UNREGISTER] dev 2 rocep8s0f0
[REGISTER] dev 4 mlx5_0
[NETDEV_ATTACH] dev 4 mlx5_0 port 30 netdev 4 eth2
$ echo 4 > /sys/class/net/eth2/device/sriov_numvfs
[NETDEV_ATTACH] dev 4 rdmap8s0f0 port 2 netdev 7 eth4
[NETDEV_ATTACH] dev 4 rdmap8s0f0 port 3 netdev 8 eth5
[NETDEV_ATTACH] dev 4 rdmap8s0f0 port 4 netdev 9 eth6
[NETDEV_ATTACH] dev 4 rdmap8s0f0 port 5 netdev 10 eth7
[REGISTER] dev 5 mlx5_0
[NETDEV_ATTACH] dev 5 mlx5_0 port 1 netdev 11 eth8
[REGISTER] dev 6 mlx5_0
[NETDEV_ATTACH] dev 6 mlx5_0 port 1 netdev 12 eth9
[REGISTER] dev 7 mlx5_0
[NETDEV_ATTACH] dev 7 mlx5_0 port 1 netdev 13 eth10
[REGISTER] dev 8 mlx5_0
[NETDEV_ATTACH] dev 8 mlx5_0 port 1 netdev 14 eth11
$ echo 0 > /sys/class/net/eth2/device/sriov_numvfs
[UNREGISTER] dev 5 rocep8s0f0v0
[UNREGISTER] dev 6 rocep8s0f0v1
[UNREGISTER] dev 7 rocep8s0f0v2
[UNREGISTER] dev 8 rocep8s0f0v3
[NETDEV_DETACH] dev 4 rdmap8s0f0 port 2
[NETDEV_DETACH] dev 4 rdmap8s0f0 port 3
[NETDEV_DETACH] dev 4 rdmap8s0f0 port 4
[NETDEV_DETACH] dev 4 rdmap8s0f0 port 5
Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com>
Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
Link: https://patch.msgid.link/20240909173025.30422-7-michaelgur@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'include/rdma/rdma_netlink.h')
| -rw-r--r-- | include/rdma/rdma_netlink.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/rdma/rdma_netlink.h b/include/rdma/rdma_netlink.h index c2a79aeee113..326deaf56d5d 100644 --- a/include/rdma/rdma_netlink.h +++ b/include/rdma/rdma_netlink.h @@ -6,6 +6,8 @@ #include <linux/netlink.h> #include <uapi/rdma/rdma_netlink.h> +struct ib_device; + enum { RDMA_NLDEV_ATTR_EMPTY_STRING = 1, RDMA_NLDEV_ATTR_ENTRY_STRLEN = 16, @@ -110,6 +112,16 @@ int rdma_nl_multicast(struct net *net, struct sk_buff *skb, */ bool rdma_nl_chk_listeners(unsigned int group); +/** + * Prepare and send an event message + * @ib: the IB device which triggered the event + * @port_num: the port number which triggered the event - 0 if unused + * @type: the event type + * Returns 0 on success or a negative error code + */ +int rdma_nl_notify_event(struct ib_device *ib, u32 port_num, + enum rdma_nl_notify_event_type type); + struct rdma_link_ops { struct list_head list; const char *type; |